Group UE Mobility Coordination Using Leader-Based Cell Voting
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Solution Overview
Problem
Existing UE-initiated mobility solutions for groups of devices are not optimal, as they rely on individual UE evaluations that do not account for collective mobility decisions, leading to suboptimal mobility outcomes and increased power consumption and signaling overhead.
Innovation Solution
A leader UE is designated within a group to make mobility decisions based on comprehensive metrics and votes from other group members, facilitating coordinated UE-initiated group mobility with reduced individual measurements and centralized signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual UE evaluations are used for mobility decisions, then each UE can independently determine its mobility, but the mobility outcomes are suboptimal and power consumption increases
Solution Approach 1:
The patent combines individual UE evaluations with collective group evaluations. Instead of purely individual decisions, the system merges measurements from multiple UEs to form a group evaluation that determines mobility decisions, improving reliability while reducing individual power consumption through shared measurements
Solution Approach 2:
The patent introduces a group evaluation mechanism as an intermediary between individual UE measurements and final mobility decisions. This intermediary aggregates information from multiple UEs and produces coordinated mobility decisions, reducing the need for each UE to independently evaluate all cells
2Ease of operation
If individual UE evaluations are used for mobility decisions, then each UE operates independently, but signaling overhead increases
Solution Approach 1:
The patent merges individual UE evaluations with group evaluations to reduce signaling overhead. By combining measurements and evaluations at the group level, the system reduces the amount of individual signaling required while maintaining operational flexibility
Solution Approach 2:
The group evaluation acts as an intermediary that consolidates information from multiple UEs before transmitting to the network, reducing redundant signaling overhead while preserving individual UE operational capabilities
3Reliability
If comprehensive metrics are collected from all UEs, then mobility decisions are optimized, but measurement and processing complexity increases
Solution Approach 1:
The patent segments the mobility decision process into individual UE evaluations and collective group evaluations. This segmentation allows comprehensive metrics to be collected systematically while reducing processing complexity through structured aggregation and coordinated measurement approaches
Data Source
AI summary
Certain aspects of the present disclosure provide techniques for coordinating a mobility decision for a group of devices. A method generally includes obtaining one or more metrics associated with one or more cells; and sending, to one or more user equipments (UEs), an indication of a recommendation for a mobility decision for at least one cell of the one or more cells based on the one or more metrics. Another method generally includes obtaining, from each of one or more UEs, a respective vote for mobility to a cell; and sending, to the one or more UEs, a voting result for mobility to the cell based on the respective vote of each of the one or more UEs.